Is atheism a sign of intelligence?
Recent posts have proposed convoluted theories accounting for why atheists score higher on IQ tests than religious people. There is a much simpler explanation. Like a lot of correlations of this type, it is probably less exciting than it appears.
Atheists are probably more intelligent than religious people because they benefit from many social conditions that happen to be correlated with loss of religious belief. When one looks at this phenomenon from the point of view of comparisons between countries, it is not hard to figure out possible reasons that more intelligent countries have more atheists as Richard Lynn (2009) reported.